﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace BridgePattern
{
    /// <summary>
    /// 手机的基类
    /// </summary>
    public abstract class BasePhone
    {
        public abstract string System();
        public abstract void Call();
        public abstract void Text();
    }
}
